the VAL3518 (also identified as VAL03518) ensures precise fluid control and reliable system isolation during routine maintenance or critical compressor repairs

ensuring absolute mechanical and electrical compatibility

preventing unnecessary compressor wear during extreme cold cycles

while the warm-out setting is -6

Copeland 998-0540-00 Limit Switch R-134A the VAL3518 (also identified asThe Copeland 998 0540 00 220F Limit Switch is a critical thermal protection component designed for commercial refrigeration and HVAC compressor safety. This discharge line thermostat monitors internal temperatures to prevent compressor overheating, effectively acting as a high limit cutoff. Engineered with a 220F trip point, the switch triggers when the discharge gas temperature reaches the safety threshold, interrupting the control circuit to protect